
4.0" CI Side Bites - FCS Compatible (Solid Fiberglass) (clear)
The Channel Islands Side Bite Fins add bite, drive, and extra hold to your board without sacrificing speed or flow. Designed to enhance rail engagement and con…
Adds to your Lundquist cart. Mix with boards and accessories — single Stripe checkout. Ships in 3–5 business days after a Lundquist QC pass.
Specs
- Fin box
- fcs-2
- Foil
- —
- Rake
- —
- Base
- —
- Depth
- —
- Area
- —
- Weight
- 156 g
- Material
- fiberglass
- Construction
- Solid Fiberglass
About this fin
The Channel Islands Side Bite Fins add bite, drive, and extra hold to your board without sacrificing speed or flow. Designed to enhance rail engagement and control — especially in bigger or steeper surf — they’re the perfect complement to single fin or 2+1 setups. Easy to pair and highly versatile, these fins help unlock sharper turns and more confident arcs while maintaining smooth, responsive performance.
New to longboard setups?
Learn how foil, rake, and family choice shape the way a board rides.
More longboard options

FCS II Connect Longboard Fin (7" / Performance Glass / Clear)
fcs 2
Versatile, high performance fin. Connect turns and move up and down the board. Performance Design Size Overview Neutral, well balanced template. Versatile, hig…

Gerry 8.5" (Default Title)
longboard us-box
Inspired by the early years of single fin guns in heavy conditions, this 8.5" fin is a classic template with great maneuverability. The go-to choice for Gerry…

Tiller 9" (Default Title)
longboard us-box
The Tiller 9” is a modern spin on a classic favorite. With a large base for holding your line and a thinned tip for added responsiveness from rail to rail, the…
Pair this fin with a Lundquist board
Every Lundquist board is built to your spec. Tell Blake what you’re after and he’ll dial in the fin recommendation with the shape.
Start a Custom Order